Chengdu weather in August

In August, Chengdu sees average daytime highs of 30°C and overnight lows near 23°C, with 290 mm of rain across 19.8 wet days and about 13.1 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 28°C by the end. The sky is clear or mostly clear about 15% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 30 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Chengdu's 6th-clearest and 10th-windiest month. For the whole year in context, see Chengdu's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
290 mm
19.8 wet days
Daylight
13 h 06 min
6:34 AM – 7:41 PM
Cloud cover
72%
6th clearest
Wind
6 km/h
10th windiest
Solar energy
4.32 kWh/m²
Travel score
3.9
out of 10

Chengdu is capital of Sichuan Province, China.

Air quality
Very high
PM2.5 49.3 µg/m³ · 2018
Density
944/km²
people per km²
Founded
~310 BCE

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 28°C by the end.

A typical August day in Chengdu reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103023
113023
123023
133023
143023
153023
163023
173023
183022
193022
203022
212922
222922
232922
242922
252922
262922
272922
282922
292822
302821
312821

How August really feels in Chengdu

Once humidity and wind are folded in, August averages 20 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
20
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Chengdu weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan10° / 3110.22.5
Feb12° / 7210.93.8
Mar17° / 10°195.511.85.8
Apr23° / 15°437.912.76.7
May27° / 18°669.713.56.1
Jun29° / 21°12811.713.95.0
Jul30° / 23°29219.813.83.6
Aug30° / 23°29019.813.13.9
Sep26° / 19°13412.812.25.9
Oct21° / 15°408.511.26.3
Nov16° / 10°164.310.45.5
Dec11° / 41.310.13.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33565
43565
53565
63565
73763
83664
93763
103763
113763
123565
133565
143664
153565
163565
173565
183565
193565
203565
213367
223367
233367
243367
253367
263367
273367
283367
293169
303169
313169

Chance of precipitation in August

Any precipitation

Chengdu gets around 290 mm of rain over 19.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 64% and peaks near 74% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
174
273
373
472
572
671
770
870
969
1069
1168
1268
1367
1467
1566
1665
1764
1864
1963
2062
2161
2260
2359
2458
2557
2655
2754
2853
2952
3051
3151

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the oppressive band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
102196019
202196118
302206018
402216017
502225917
602235916
702245915
802255815
902265814
1002285713
1102295613
1203315412
1303335311
1404345210
150436519
160538499
170540488
180541467
190543456
200645446
210646425
220748415
230750394
240752374
250852364
260954343
270956323
2801057303
2901158283
3001259263
3111457253

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 30 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over August. Sunrise moves from 6:25 AM to 6:43 AM, and sunset from 7:55 PM to 7:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.56:257:55
213.56:257:54
313.56:267:53
413.46:277:53
513.46:277:52
613.46:287:51
713.46:297:50
813.36:297:49
913.36:307:48
1013.36:307:47
1113.36:317:46
1213.26:327:45
1313.26:327:45
1413.26:337:44
1513.16:347:43
1613.16:347:41
1713.16:357:40
1813.16:357:39
1913.06:367:38
2013.06:377:37
2113.06:377:36
2213.06:387:35
2312.96:387:34
2412.96:397:33
2512.96:407:32
2612.86:407:30
2712.86:417:29
2812.86:417:28
2912.76:427:27
3012.76:437:26
3112.76:437:24

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.32 kWh/m².

For context, solar energy here swings from a low near 1.98 kWh/m² to a high of 4.59 kWh/m² in May across the year — August's 4.32 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.1Bright
224.1Bright
234.1Bright
244.0Bright
254.0Moderate
264.0Moderate
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
313.7Moderate
Planning a trip in August

Hazard calendar for Chengdu

In seasonPeak

In August, Chengdu sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Chengdu's rainy season runs July–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Chengdu?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.9
Sightseeing
8th-best month of the year
5.2
Beach & pool
4th-best month of the year

August is a weaker month for outdoor sightseeing in Chengdu.

What to pack for Chengdu in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Chengdu sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 20 days see rain.

light clothesrain gear

UV index in Chengdu in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chengdu peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 16UV 10Jan 11UV 2
UV index (midday)Level
Jan2Moderate
Feb5Moderate
Mar7High
Apr7High
May9Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Chengdu in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Chengdu is worst in January — around 60 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Chengdu's WHO annual average of 49.3 µg/m³.

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 1859 µg/m³Aug 1038 µg/m³
PM2.5 (µg/m³)Level
Jan60Unhealthy
Feb58Unhealthy
Mar57Unhealthy
Apr50Poor
May47Poor
Jun39Poor
Jul38Poor
Aug38Poor
Sep44Poor
Oct49Poor
Nov54Poor
Dec57Unhealthy
Location & terrain

Where is Chengdu?

Chengdu sits at 30.7°N, 104.1°E, 499 m above sea level, in China. The nearest listed city is Leshan, 126 km away.

GuiyangShangri-LaLijiangXi'anFenghuangKunming

Topography around Chengdu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chengdu.

Within 3 km, the terrain around Chengdu has only modest variations in elevation — a maximum elevation change of 42 m around an average of 501 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 124 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,717 m.

The land around Chengdu is covered by artificial surfaces (88%) within 3 km, artificial surfaces (55%) within 16 km, and trees (53%) and cropland (33%) within 80 km.

3 km
42 m
16 km
124 m
80 km
3,717 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Leshan 126 km · Chongqing 269 km · Guiyang 523 km · Shangri-La 528 km · Lijiang 565 km · Xi'an 606 km · Fenghuang 616 km · Kunming 640 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 5%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chengdu (30.6667°, 104.0667°, elevation 499 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).